1208942387 has 2 divisors, whose sum is σ = 1208942388. Its totient is φ = 1208942386.

The previous prime is 1208942381. The next prime is 1208942417. The reversal of 1208942387 is 7832498021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1208942387 - 2²⁶ = 1141833523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1208942381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604471193 + 604471194.

It is an arithmetic number, because the mean of its divisors is an integer number (604471194).

Almost surely, 2^1208942387 is an apocalyptic number.

1208942387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1208942387 is an equidigital number, since it uses as much as digits as its factorization.

1208942387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 1208942387 is about 34769.8488204939. The cubic root of 1208942387 is about 1065.2916793860.

The spelling of 1208942387 in words is "one billion, two hundred eight million, nine hundred forty-two thousand, three hundred eighty-seven".